Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Can you write down eight eights so that they add up to one thousand?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

How many letters are in the alphabet?

What jumps when it walks and sits when it stands?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?